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Vulnerability details: VCID-9m3f-r1wf-aaas
Vulnerability ID VCID-9m3f-r1wf-aaas
Aliases CVE-2020-27840
Summary A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-125 Out-of-bounds Read
System Score Found at
generic_textual High http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-27840.html
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27840.json
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
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epss 0.00893 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.04813 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.04813 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.04813 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.04813 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
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epss 0.04813 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
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epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
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epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
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epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.05201 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
epss 0.08055 https://api.first.org/data/v1/epss?cve=CVE-2020-27840
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1941400
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10730
generic_textual High https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27840
generic_textual High https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20277
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-27840
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-27840
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-27840
archlinux Medium https://security.archlinux.org/AVG-1732
archlinux Medium https://security.archlinux.org/AVG-1734
generic_textual High https://ubuntu.com/security/notices/USN-4888-1
generic_textual High https://ubuntu.com/security/notices/USN-4888-2
generic_textual High https://www.samba.org/samba/security/CVE-2020-27840.html
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-27840.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27840.json
https://api.first.org/data/v1/epss?cve=CVE-2020-27840
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10730
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27840
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20277
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/
https://security.gentoo.org/glsa/202105-22
https://security.netapp.com/advisory/ntap-20210326-0007/
https://ubuntu.com/security/notices/USN-4888-1
https://ubuntu.com/security/notices/USN-4888-2
https://www.debian.org/security/2021/dsa-4884
https://www.samba.org/samba/security/CVE-2020-27840.html
1941400 https://bugzilla.redhat.com/show_bug.cgi?id=1941400
985936 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=985936
AVG-1732 https://security.archlinux.org/AVG-1732
AVG-1734 https://security.archlinux.org/AVG-1734
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2020-27840 https://nvd.nist.gov/vuln/detail/CVE-2020-27840
USN-4888-1 https://usn.ubuntu.com/4888-1/
USN-4888-2 https://usn.ubuntu.com/4888-2/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27840.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27840
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27840
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27840
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.78488
EPSS Score 0.00611
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.